Railway-car truck.



l `0. T1. DOUGHERTY. RAILWAY CAR TRUCK.

LICMIQMILED sePLzz. 191s.

Patented May 22, 1917.

2%' F'IHM......

' Car Trucks,

car comesto rest.

inermi) "STATES: PATENT OFFICE Vowlm*monies noUeHnn'r'Y, or sm. 1min.,mmimso're.

Specification of Letters Patent.

Patented May 2e, 1917.

Application lcd September 27,1918. Serial No. 122,520.

To all whom it may concern: 4 Beit 'known that I, OWEN T. Dono-Henry,

'a citizen of thellnited States, residing at St. 'Paul, in in malty ofRamsey and State of Minnebe., ave invented certain new and usefulImprovements in Railway; of 4which the following is a specification.

This inventionA relates to railwayrar trucks, .and has for its objectthe production of a. truck structure comprising parts of specialconstruction and whereby it 'is believed the up movements of the bolsteror weight-supporting membev. of the truck are fully cushioned7 and, 'uthe Same time, the forward or rearward impulses or movements of themember arenyieldingly received by the springs.

and down when a car is started there are always several backward andfoi-wurd shocks before the whole. moves evenly forward, and, -when acai' is stopped there is always a final-and.

apparently rearward jolt as the body of the By the use of this inventionthe initial and final shocks are taken `up by suitably arrangedsi'ilrings', and. not

only is the car thus equipped rendered .more

pleasant to'r-ide upon, but its useful-life iS.

inateri ally increased.

ln the 'accompanying drawings, the parts y 0F this invention, theii`construction and re1- 'f downwardly and the axles aiul certain othershown in section. liig. is

ative positions4 unil arrangement are illustrated. 4 igifili'e i,-is nsrle View of assembled ,and shows the truck frame, track.

outer Vside of, the with inspect to the rails of the Fig. 2 is :i viewofthe insideof the Side frame of a ear truck constructed in ac-` viewbeing' cortlanai with this'- invention, the taken from between thenails' of the track, parts being a diagrammatic 1e| n"escntationindicating the position of the 'rounded en'dpoiftioriof-'tl|e holsterwhen the car is ovi-.rloadedand the springs are snlliciontlyeornpressegl tovbring the holster into contact with the base of theopeningthrough the frame '.Fig. 4 is an explanatory ligure similar toFigr, and

arrangement,

1t isthought to be afn'iatter of .in liig.. l that the sides of -commonknowledge and experience that .of which engage tables l. and

all parts showing the manner in which the pull of the locomotive pauses..the bolster to riseV upon the upwardly-curved portion of the frame andrelieves the spi-ings in order that they may assist in supporting theload by their resilience'. l .I Throughout the description and drawingsthe same letter is used toreferto thefsume Considerin track A are t waytruck of customay construction, and having the axles C, '0.

The truck axles are journaledin-suitable boxes carried bye frame D andthe frame has an opening d in the middle of its length. Arranged in theopening'of the frame is a' head E of the bolster.e. It will be noted thehead E conand against Athose sides verge downwardly,

e side wheels'B, of a reilof thel head are arranged the tables or'.

spring,r terminals F The tables liUaiul f rcst-movablv against theconvergm?,r sides of" the head and as thel ear proceeds-and the headmoves up and down the sides ot' the head slide upon the f. Any suitablemeans such as the lugs Il and JL, may be provided to holdv the lower,ends of the springs' inthe opening: Z of-the frame D. T t will he4observed that nFig. 2, which shows the inside of the frame D, thattherestrneted integral with the frame. The.y upper part of the A,collar J isprovided with the upwardly converging-sides K end-k asillustintfei|,andthe bolster isprovided 4with a, portion orihlock j cr ir respondingin form to and arranged between tlieconverging' sides of. the colla-rtl.I

lIn tlie'opcration of this invention, theug and down movements o f'tlie'vboister, whic ris the member' that carries the' weight of 'thecui', are .taken up-hy iaith-springs together, the f fonveruing sidi-sof the upon thi-.. .taliles' li` and f .as already eA'-, plnineil. Letit be assumed in motion, und that the lirakesai'e` applied more or less'carelessly and sharply es repeat-" and f, the shunks or lugs the spiralspii'ngs G und g."

1is a' eollar,-oi. yoke J, formed as usually conaol."y

5 95 I heajdfE sliding that the car is i l ion edl '4 happens. Themomentum of the car bocy forward is abruptly opposed, and when trucks ofordinary construction and with which this applicantis acquainted areused, there is a' suceessionlof backward and spring G. larly taken up bythe slring g. It is boecn made clear by forward shocks, alwaysunplcasuntto the occupants of the car. When this invention is used,themoinen'tui'n of the body forward 'presses the inclined side of thehead or block j against the correspondinglincline of the collar J, andthe shock is taken up by the Rearward impulses are similieved,therefore, to have the drawin andthe fore oing specification that t e-bolster is a equately. cashioned, by means of thetwo inclined coiledsprings and the construction disclosed, for

sudden movements of any kind upor down,

forward or rearward. Attention is also' ofthe load.

Ha fnow describedthis invention and explains the mode of its operation,what I claim is 1. In a cnr ruck, the combination with a frame, the saidframe having an opening, of springsarranged in the said opening andinclined upwardly and-toward each other, a bolster having a headarranged in the siiid opening, the said head being supported by the saidsprings, the said frame having a portion provided with converging sides,und

the said bolster having :i portion arranged between the saidcoin-"erging sides'a'nd constr iicted to slide thereon during theprogress Vso of the car. l

2. Ina' car. truck, the combinationwith a frame, the said frame havingan opening, of

springs arranged iiithe said'openin and inclined upwardly and towardeach ot er, a

- ofthe ca r.

. bolster having ahead arranged in the said opening, the. said head beinsupported by the said springs, thesaid; rume having a portion formed.'on the inner side thereof provided with upwardly converging sides, and

the' said bolster having :a portion arranged between the saidconvergingsides and construeted to slide thereon during. the progress 3.In a. truck, the'coinhination with a frame. having a -middle opening,of. springs iirraii'gcd' in; the said 'opening and inclined the supporting sides, tliesnidspriligs bearing n'ioi'alilj; upon the said sides orthe head, the said ii'ainc having a portion provided with co'n- 'xiivergin sides,und the said bolster having a. portion arranged between thesaid con verging sides and construct-ed to slide iliereon during tlicpro ross of the cai'.

4r.I In a car true the combination with-ri i frame having a middleopening, of springs arranged in the said opening and inclined f upwardlytoward each other, a bolster liav- ,i

in a head'supporte-d by the said -s rindaY thsaid houd having downwardlytioliiveif-7 ing sides, the said springs bearing inovablv upon thesaidsides of the head, the said frame having a portion formed on the iiinerside thereof providedwith upwardlyconverging sides, and the said bolsterhavingr a portion arranged between the said cor..- verging sides of theframe and constructed to slide thereon during the progress of the car.

frame, of' springs supported by the frame and inclined upwardly andtoward each othera bolster having a portion supported-by the saidsprings, the said frame 'lia-vin" a portion provided with convergingsides, and the said bolster having a between the said converging sidesof the frame andl constructed to slide thereon during the progress ofthe ear.

6. Ina ear truck, the combination with zi frame, the s aid frame havingan opening, the said opening having the sides of its lower portioncurving upwardly, of springs arranged in thesaid opening and inclinedupwardly and toward each other, a bolster having a head arranged in thesaid o ening` the said head beingsupported by t 'e said springs, thesaid bolster having a rounded end portion arranged in the said' opening5` In a ear truck, the combination with a ortion .arranged whereb whenthespiiiigs are compressed the sai roundedportionof the bolster mii-j.'be moved-against the said curvin ,sides o thesaid opening, the saidfraine a'vng a portion provided. with converging sides, and the saidbolster'having a portion arranger! between the said converging sides andconstructedto slide thereon during the progress of the car.

7. In a car truck, the combination with a frame, the said frame havingan opening, the said opening having the sides of its lower portioncurving upwardly, of springs arrangedin the said opening and inclii'icdsprings, the said bolsterhaving a rounderL end portion arranged in thesaid opening upwardly and toward each other, a b olster .having ahead'arranged in the said o eiiing. "the said headbeing supported by t esaidv whereb when the springs' are compressed strueted to slide thereonduring the progress" the sai rounded portion of the bolster may of thecer. 10 be moved against'the Said curving sides of 'In testimony whereofI aix my signature. v

5 collar 'formed'on the inner side thereof provided with upwardlyconvergingfsides, and Witnesses: thelsaid bolster having a, portionarranged I. A. DUNBMOORL between the said converging sides and conl C.MONICA RALPH.

the said opening, theseid frame'havin'g a OWEN'THOMAS DOUGHERTY

